Lithium ion batteries in a device (99 Wh or less)

Carry on baggage
Yes
Checked baggage
Yes

Lithium ion batteries with a watt-hour (Wh) rating of 99 Wh or less may be carried in a device in either carry-on or checked baggage.

Spare batteries: Spare lithium ion batteries of 99 Wh or less must be packed in carry-on and are permitted only with air carrier approval in checked baggage.

See Guidelines for Batteries chart for further detail.